Envelop.



J. MILUTIN.

ENVELOP- APPLICATION FILED APR! 3, I916.

Patented Nov. 28, 1916;

INC mum: PEYERS co. PHOTO-Tu l, WASNING You. a. c.

JdHN MILUTIN, OF ALTA LOMA, TEXAS.

ENVELOP.

Specification of Letters Patent.

Patented Nov. 28, 1916.

Application filed April 3, 1916. Serial N 0. 88,674.

To all whom it may concern.-

Be it known that 1, JOHN MILUTIN, a citizen of the United States of America, residing at Alta Loma, in the county of Galveston and State of Texas, have invented certain new and useful Improvements in Envelops, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to safety envelops and has for its object the production of a simple and efficient envelop which may be readily and conveniently sealed and after once having been scaled, cannot be opened without the same being detected.

Another object of this invention is the production of a simple and efficient means for sealing an envelop wherein the tongues are provided with elastic means for causing the sealing tongues to normally retain an extended position.

With these and other objects in View, this invention consists of certain novel combinations, constructions, and arrangements of parts, as will be hereinafter fully clescribed and claimed.

In the accompanying drawings:Figure 1 is a plan view of the rear face of the envelop. Fig. 2 is a plan view of the blank from which the envelop is made. Fig. 3 is a section taken on line 33 of Fig. 1. Fig. 4 is a section taken on line 4-4 of Fig. 1. Fig. 5 is a detailed perspective of a portion of the closure flap of the envelop. Fig. 6

v is a detailed perspective of the under face of a portion of the closure flap.

Referring to the accompanying drawings by numerals it will be seen that 1 designates the body of the envelop which is provided upon the bottom thereof with a bottom closure flap 2 and upon the sides thereof with a pair of end closure flaps 3. A top closure flap 4 is also integrally secured to the body 1, as illustrated in Fig. 2 of the drawings.

The end closure flaps 3 are provided with elongated slots 5 and these end flaps are adapted to be folded upon the body of the envelop as shown in Fig. 1. The bottom closure flap 2 is provided with an elongated slot 6 and this bottom closure flap is adapted to be folded over the end closure flaps, as illustrated in Fig. 3 of the drawings. The bottom closure flap 2 is provided with a plurality of tongues 7 formed around the edge thereof, which tongues 7 are adapted to fit in the elongated slots 5 formed along the lower edge of the end flaps 3. These tongues 7 are provided with ears 8 which are adapted to be flattened out after the spread outwardly thereby preventing the bottom closure flap from being disengaged from the end closure flaps.

As illustrated in Fig. 2, the bottom closure flap is provided with the slot 6 and the end closure flaps 3 are provided with slots near the upper edges thereof for the purpose of receiving the tongues 9 carried by the top closure flap i. These tongues 9 are provided with laterally extending ears 10 and an elastic strip 11 is formed upon or secured to the bottom of each of the tongues 9 so as to overhang the inner faces of the ears 10 and normally hold these ears in an extended position.

It should be understood that the ears 10 may be folded to the position shown in dotted lines in Fig. 5 for the purpose of passing the tongues 9 through the slots 6. It of course should be understood that as soon as the tongues 9 are passed through the slots 6 and the slots formed near the upper edges of the end flaps 3, the elastic strips 11 will cause the ears 10 of the tongues 9 to assume the position shown in Figs. 5 and 6 and thereby prevent the upper flap 1 from being opened without tearing the envelop. It should be understood that the slots 5 and 6 are formed so as to be the same width as the body portion of the tongues 7 and 9 and are not of sufficient length to permit the tongues 9 to pass through the slots when the ears 10 are in an extended position.

From the foregoing description it will be seen that a. very simple and efficient mechanism has been produced for sealing the envelop which will prevent the envelop from being opened by unauthorized parties Without being detected.

What I claim is As a new article of manufacture, an envelop of the class described comprising a 10 Withdrawal of the tongues from said slots,

and an elastic strip secured to the under faces of the tongues of said topflap and projecting over the under faces of the ears of said tongues of said top flap and adapted to normally hold said last-mentioned ears in an extended position with respect to said 7 last-mentioned tongues.

In testimony whereof I hereunto afiix my signature.

JOHN MILUTIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

